JavaScript / ECMAScript

GitHub Repository URL in JS

Match GitHub repository URLs and capture the owner and repo segments.

Try it in the JS tester →

Pattern

regexJS
https?:\/\/(?:www\.)?github\.com\/([A-Za-z0-9](?:[A-Za-z0-9\-]{0,38})?)\/([A-Za-z0-9._\-]{1,100})   (flags: g)

JavaScript / ECMAScript code

jsJavaScript
const re = new RegExp("https?:\\/\\/(?:www\\.)?github\\.com\\/([A-Za-z0-9](?:[A-Za-z0-9\\-]{0,38})?)\\/([A-Za-z0-9._\\-]{1,100})", "g");
const input = "Source at https://github.com/vercel/next.js or https://www.github.com/torvalds/linux";
const matches = [...input.matchAll(re)];
console.log(matches.map(m => m[0]));

Uses `String.prototype.matchAll` for global iteration (Node 12+ / all modern browsers).

How the pattern works

https?:\/\/(?:www\.)?github\.com\/ matches the domain with optional www and either http/https. The first capture ([A-Za-z0-9](?:[A-Za-z0-9\-]{0,38})?) follows GitHub's username rules: 1–39 chars, alphanumeric + hyphens, no leading/trailing hyphen (simplified). The second capture matches the repo name with the broader allowed character set.

Examples

Input

Source at https://github.com/vercel/next.js or https://www.github.com/torvalds/linux

Matches

  • https://github.com/vercel/next.js
  • https://www.github.com/torvalds/linux

Input

Star: https://github.com/anthropics/claude-code

Matches

  • https://github.com/anthropics/claude-code

Input

no github links

No match

—

Same pattern, other engines

Python (re)

Supported

See how this pattern looks (and behaves) in Python's stdlib `re` module.

Go (RE2)

Supported

See how this pattern looks (and behaves) in Go's `regexp` package (RE2 engine).

← Back to GitHub Repository URL overview (all engines)